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[. . . ] TB7220U Commercial Programmable Thermostat
OWNER'S GUIDE
63-2626--1
CONTENTS
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main Screen Selections and Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Programming Heating and Cooling Schedule . . . . . . . . . . . . . . . . . . Operating the Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Press DONE.
NOTE: During a holiday, the word "Holiday" flashes. To cancel the Holiday Override early, press CANCEL.
NOTE: When the number of Holiday Override days expires, the screen shows "Following Schedule" to indicate that the Holiday Override has ended.
Fan Status Displayed on Main Screen
AUTO--fan is controlled by the system. When the thermostat is running the fan, the fan blade symbol indicate the thermostat has the fan on. NOTES: -- -- -- appears next to FAN to
If the mode is Occupied, fan control is On. The only thing that allows the fan to turn off during occupied periods is a manual fan override from On to Auto. If the mode is Unoccupied, fan control is the same as with the Auto setting. This is true even when the display indicates "On". If the thermostat is not controlling the fan, the fan blade symbol might not appear even while the fan is running.
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Replacing Batteries
With proper power and connections, the thermostat does not require batteries. Thermostats with batteries provide a warning when the batteries run low. This warning flashes on the main screen for approximately 30 days. NOTES: -- If batteries are not replaced when Low Battery warning is flashing, the LO batt screen displays continuously and M22383 thermostat stops operating until batteries are replaced. Despite the low battery indicator, it is recommended that you replace the batteries once each year. Do this to prevent leakage and to prevent the thermostat and HVAC system from shutting down due to lack of thermostat battery power.
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Replace the batteries as follows: 1. Remove the thermostat from the base by pulling it straight out. Install two new AA alkaline batteries with proper polarization. NOTES: -- -- Always use AA alkaline batteries. All programming (Schedule, Date and Time) information is retained during battery replacement.
WALL
M22384
15
63-2626--1
3.
Place the thermostat back on its base: a. Align the terminal screw blocks with the pins on the back of the thermostat. Push the thermostat straight onto the base. After two minutes, the device automatically returns to the main screen. To return to the main screen before the two minutes pass, press a key.
BATTERIES (2)
BATTERY HOLDER
NOTES: --
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BACK OF THERMOSTAT
M22259
16
63-2626--1
Reading Remote Indoor Temperature
If connected to an installed remote indoor temperature sensor, the thermostat displays the indoor temperature from the remote sensor(s). NOTE: When connected to an installed remote indoor temperature sensor, the thermostat internal sensor is not used. [. . . ] A: Whatever is flashing on the screen is the item that the up and down buttons affect. Q: The keys (some or all) do not work; why not?Q: Backlighting seems dim; is it designed to be dim?A: When using batteries for power, install fresh AA alkaline batteries. [. . . ]
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